If your prediction is correct
When BT announces its results, it’s clear the company has had a successful quarter – and as you predicted, its share price climbs. You decide to close your position when it reaches 354.3, with a buy price of 354.4 and a sell price of 354.2.
You reverse your trade to close a position, so you sell your 2000 CFDs at a price of 354.2.
To calculate your profit, you multiply the difference between the closing price and the opening price of your position by its size. 354.2 – 314.7 = 39.5, which you multiply by 2000 CFDs to get a profit of £790.
Just remember that you’ll also need to pay a commission fee, any overnight funding charges, and capital gains tax on your profits.